EN 62071-2:2006

Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape - Format D-7 - Part 2: Compression format

defines the DV-based data structure for the interface of digital audio, subcode data and compressed video with the following parameters: 525/60 system - 4:1:1 image sampling structure, 25 Mb/s data rate; 525/60 system - 4:2:2 image sampling structure, 50 Mb/s data rate; 625/50 system - 4:1:1 image sampling structure, 25 Mb/s data rate; 625/50 system - 4:2:2 image sampling structure, 50 Mb/s data rate.

Videokassettensystem mit komprimierter digitaler Schrägspuraufzeichnung auf Magnetband 6,35 mm - Format D-7 - Teil 2: Kompressionsformat

Système de magnétoscope numérique à cassette à balayage hélicoïdal à signal compressé utilisant une bande magnétique de 6,35 mm - Format D-7 - Partie 2: Format de compression

La CEI 62071-2:2005 définit la structure de données sur base DV pour l'interface des données audionumériques, de sous-code, et vidéo comprimées avec les paramètres suivants: - système 525/60 - structure d'échantillonnage de l'image 4:1:1, débit de données 25 Mb/s; - système 525/60 - structure d'échantillonnage de l'image 4:2:2, débit de données 50 Mb/s; - système 625/50 - structure d'échantillonnage de l'image 4:1:1, débit de données 25 Mb/s; - système 625/50 - structure d'échantillonnage de l'image 4:2:2, débit de données 50 Mb/s. La présente version bilingue (2013-07) correspond à la version anglaise monolingue publiée en 2005-10.

Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na magnetnem traku, širokem 6,35 mm, in komprimiranjem – Format D-7 – 2. del: Kompresijski format (IEC 62071-2:2005)

General Information

• Status: Published
• Publication Date: 10-Jul-2006
• Withdrawal Date: 31-May-2009
• ICS: 33.160.40 - Video systems
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Parallel Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 11-Jul-2006
• Completion Date: 11-Jul-2006
• Ref Project: SIST EN 62071-2:2007 - Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape - Format D-7 -- Part 2: Compression format

Relations

• Replaces: EN 62071:2001 - Helical-scan compressed digital video cassette recording system using 6,35 mm magnetic tape - Format D-7
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2007
Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na
magnetnem traku, širokem 6,35 mm, in komprimiranjem – Format D-7 – 2. del:
Kompresijski format (IEC 62071-2:2005)
Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape -
Format D-7 -- Part 2: Compression format (IEC 62071-2:2005)
Videokassettensystem mit komprimierter digitaler Schrägspuraufzeichnung auf
Magnetband 6,35 mm - Format D-7 -- Teil 2: Kompressionsformat (IEC 62071-2:2005)
Systeme de magnétoscope numérique a cassette a balayage hélicoidal a signal
compressé utilisant une bande magnétique de 6,35 mm - Format D-7 -- Partie 2: Format
de compression (IEC 62071-2:2005)
Ta slovenski standard je istoveten z: EN 62071-2:2006
ICS:
33.160.40 Video sistemi Video systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62071-2
NORME EUROPÉENNE
July 2006
EUROPÄISCHE NORM
ICS 33.160.40
English version
Helical-scan compressed digital video cassette system
using 6,35 mm magnetic tape -
Format D-7
Part 2: Compression format
(IEC 62071-2:2005)
Système de magnétoscope numérique à Videokassettensystem mit komprimierter
cassette à balayage hélicoïdal à digitaler Schrägspuraufzeichnung auf
signal compressé utilisant une bande Magnetband 6,35 mm -
magnétique de 6,35 mm - Format D-7
Format D-7 Teil 2: Kompressionsformat
Partie 2: Format de compression (IEC 62071-2:2005)
(CEI 62071-2:2005)
This European Standard was approved by CENELEC on 2006-06-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English and German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62071-2:2006 E
Foreword
The text of the International Standard IEC 62071-2:2005, prepared by IEC TC 100, Audio, video and
multimedia systems and equipment, was submitted to the formal vote and was approved by CENELEC as
EN 62071-2 on 2006-06-01 without any modification.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-06-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-06-01
__________
Endorsement notice
The text of the International Standard IEC 62071-2:2005 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 61834-2 NOTE  Harmonized as EN 61834-2:1998 (not modified).
IEC 61833-2 NOTE  Harmonized as EN 61833-2:2005 (not modified).
__________
- 3 - EN 62071-2:2006
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

ITU-R BT.601-5 1995 Studio encoding parameters of digital - -
television for standard 4:3 and wide-screen
16:9 aspect ratios
AES3 2003 AES Recommended practice for digital audio - -
engineering - Serial transmisson format for
two-channel linearly represented digital audio
data
SMPTE 12M 1999 Television, audio and film - Time and control - -
code
INTERNATIONAL IEC
STANDARD 62071-2
First edition
2005-10
Helical-scan compressed digital video
cassette system using 6,35 mm
magnetic tape – Format D-7 –
Part 2:
Compression format
 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale XB
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 62071-2  IEC:2005(E)
–
CONTENTS
FOREWORD.5

1 Scope.7
2 Normative references.7
3 Abbreviations and acronyms .7
4 Interface .8
4.1 Introduction .8
4.2 Data structure.9
4.3 Header section .12
4.4 Subcode section .15
4.5 VAUX section .20
4.6 Audio section.24
4.7 Video section.30
5 Video compression .32
5.1 Video structure .32
5.2 DCT processing.48
5.3 Quantization .51
5.4 Variable length coding (VLC) .53
5.5 The arrangement of a compressed macro block .56
5.6 The arrangement of a video segment .59

Annex A (informative) Differences between IEC 61834 and IEC 62071-2.64
Annex B (normative) Digital filter for sampling-rate conversion from 4:2:2 to 4:1:1
colour difference signals .65
Annex C (informative) Block diagram of D-7 recorder .66

Bibliography .67

Figure 1 – Block diagram on the digital interface.8
Figure 2 – Data structure of one video frame for 50 Mb/s structure .10
Figure 3 – Data structure of one video frame for 25 Mb/s structure .10
Figure 4 – Data structure of a DIF sequence.11
Figure 5 – Data in the subcode section.16
Figure 6 – Pack in SSYB .17
Figure 7 – Data in the VAUX section.21
Figure 8 – Data in the audio section .24
Figure 9 – conversion of audio sample to audio data bytes .26
Figure 10 – Arrangement of AAUX packs in audio auxiliary data .26
Figure 11 – Transmitting samples of 525/60 system for 4:2:2 compression .34
Figure 12 – Transmitting samples of 625/50 system for 4:2:2 compression .35
Figure 13 – Transmitting samples of 525/60 system for 4:1:1 compression .36
Figure 14 – Transmitting samples of 625/50 system for 4:1:1 compression .37
Figure 15 – DCT block and the pixel coordinates .38

62071-2  IEC:2005(E) – 3 –
Figure 16 – The rightmost DCT block in colour difference signal for 4:1:1 compression
mode .38
Figure 17 – DCT block arrangement for 4:2:2 compression.39
Figure 18 – DCT block arrangement for 4:1:1 compression.40
Figure 19 – Macro block and DCT blocks for 4:2:2 compression .40
Figure 20 – Macro block and DCT blocks for 4:1:1 compression .40
Figure 21 – Super blocks and macro blocks in one TV frame for 525/60 system for
4:2:2 compression.42
Figure 22 – Super blocks and macro blocks in one TV frame for 525/60 system for
4:1:1 compression.43
Figure 23 – Super blocks and macro blocks in one TV frame for 625/50 system for

4:2:2 compression.44
Figure 24 – Super blocks and macro blocks in one TV frame for 625/50 system for
4:1:1 compression.45
Figure 25 – Macro block order in a super block for 4:2:2 compression .47
Figure 26 – Macro block order in a super block for 4:1:1 compression .47
Figure 27 – The output order of a weighted DCT block .50
Figure 28 – Area numbers .52
Figure 29 – Arrangement of a compressed macro block for 4:2:2 compression .56
Figure 30 – The arrangement of a compressed macro block for 4:1:1 compression.57
Figure 31 – The arrangement of a video segment after the bit rate reduction for 4:2:2
compression .62
Figure 32 – The arrangement of a video segment after the bit rate reduction for 4:1:1
compression .63
Figure 33 – The video error code.63
Figure B.1 – Template for insertion loss frequency characteristics .65
Figure B.2 – Passband ripple tolerance .65
Figure C.1 – Block diagram of D-7 recorder.66

Table 1 – ID data of a DIF block .12
Table 2 – Section type.13
Table 3 – DIF sequence number (525/60 system) .13
Table 4 – DIF sequence number (625/50 system) .14
Table 5 – DIF block number .
...